/*
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.firebase.storage

/** Used to emit events about the progress of storage tasks. */
abstract class TaskState<T> private constructor() {
  /**
   * Called periodically as data is transferred and can be used to populate an upload/download
   * indicator.
   */
  class InProgress<T>(val snapshot: T) : TaskState<T>()

  /** Called any time the upload/download is paused. */
  class Paused<T>(val snapshot: T) : TaskState<T>()
}
